*1378-1417 [[w:Western Schism|Western Great Schism]] ensues, including simultaneous reign of three Popes of Rome.

*1378-1417 [[w:Western Schism|Western Great Schism]] ensues, including simultaneous reign of three Popes of Rome.

*1723 The [[w:Old Catholic Church of the Netherlands|Church of Holland]], (or [[w:Old Catholic Church of the Netherlands|Church of Utrecht]]) broke with Rome under its own archbishop and hierarchy, becoming the mother church of the Old Catholic Churches.

*1723 The [[w:Old Catholic Church of the Netherlands|Church of Holland]], (or [[w:Old Catholic Church of the Netherlands|Church of Utrecht]]) broke with Rome under its own archbishop and hierarchy, becoming the mother church of the Old Catholic Churches.

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*1889 In southern India 5000 Catholics broke from Rome over an organizational dispute, and formed the ''Independent Catholic Church of Ceylon, Goa and India'' (i.e. the ''Jacobite Church of Ceylon, Goa and India''; today this is a self-governing branch of the [[Church of India|Indian (Malankara) Orthodox Church]], known as the [[Brahmavar (Goan) Orthodox Church]], a uniate faction under the Indian Orthodox Church).

*1889 Federation of [[w:Old Catholic Church|Old Catholic Churches]], not in communion with Rome, at the [[w:Union of Utrecht (Old Catholic)|Union of Utrecht]].

*1889 Federation of [[w:Old Catholic Church|Old Catholic Churches]], not in communion with Rome, at the [[w:Union of Utrecht (Old Catholic)|Union of Utrecht]].

+

*1945 Bp. [[w:Carlos Duarte Costa|Carlos Duarte Costa]] of Botucatu (in Brazil), a strong advocate for the liberal reform of the Roman Church since the 1930s, was finally excommunicated by the Vatican on July 2, 1945, in particular for his criticisms of Vatican foreign policy during World War II toward Nazi Germany; in 1945 Bp. Costa became the founder and first patriarch of the [[w:Brazilian Catholic Apostolic Church|Brazilian Catholic Apostolic Church]], an independent Roman Catholic Church (claiming 58 dioceses and five million members in 17 countries, as of 2007).

*1957 The "[[w:Chinese Catholic Patriotic Association|Chinese Catholic Patriotic Association]]" (the official state-approved Church) is established by the People's Republic of China's Religious Affairs Bureau, to exercise state supervision over mainland China's Catholics; the unofficial (Papal) Church continues function as a separate entity.

*1957 The "[[w:Chinese Catholic Patriotic Association|Chinese Catholic Patriotic Association]]" (the official state-approved Church) is established by the People's Republic of China's Religious Affairs Bureau, to exercise state supervision over mainland China's Catholics; the unofficial (Papal) Church continues function as a separate entity.

*1970 In opposing the changes within the Church associated with the Second Vatican Council, French Roman Catholic Archbishop [[w:Marcel Lefebvre|Marcel Lefebvre]] founded the [[w:Society of St. Pius X|Society of St. Pius X]] (SSPX), which is still the world's largest [[w:Traditionalist Catholic|Traditionalist Catholic]] priestly society, composed of 4 bishops and 463 priests, 85 brothers, 75 oblates and 160 seminarians.

*1970 In opposing the changes within the Church associated with the Second Vatican Council, French Roman Catholic Archbishop [[w:Marcel Lefebvre|Marcel Lefebvre]] founded the [[w:Society of St. Pius X|Society of St. Pius X]] (SSPX), which is still the world's largest [[w:Traditionalist Catholic|Traditionalist Catholic]] priestly society, composed of 4 bishops and 463 priests, 85 brothers, 75 oblates and 160 seminarians.

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*ca.451 [[Church of Alexandria (Coptic)|Coptic Christianity]] broke from the Byzantine churches in the wake of the Fourth Ecumenical Council in Chalcedon in 451; [[Shenouda the Archimandrite|Shenouda the Great]], abbott of White Monastery in Egypt (d.466), is considered the founder of Coptic Christianity.

*ca.451 [[Church of Alexandria (Coptic)|Coptic Christianity]] broke from the Byzantine churches in the wake of the Fourth Ecumenical Council in Chalcedon in 451; [[Shenouda the Archimandrite|Shenouda the Great]], abbott of White Monastery in Egypt (d.466), is considered the founder of Coptic Christianity.

:[[British Orthodox Church (Coptic)|British Orthodox Church]]

:[[British Orthodox Church (Coptic)|British Orthodox Church]]

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:*

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:*1994 At the feast of [[Pentecost]] in 1994, at Saint Mark's Cathedral in Cairo, Abba Seraphim was ordained a Metropolitan by His Holiness Pope [[Shenouda III (Gayyid) of Alexandria|Shenouda III]], and the British Orthodox Church became a constituent of the [[Church of Alexandria (Coptic)|Coptic Orthodox Patriarchate]].

====Church of Antioch (Syriac)====

====Church of Antioch (Syriac)====

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*544 Jacob Baradeus consecrates Sergius of Tella as bishop of Antioch, opening the lasting schism between the Syriac Orthodox Church and the Chalcedonian Church of Antioch.

*544 Jacob Baradeus consecrates Sergius of Tella as bishop of Antioch, opening the lasting schism between the Syriac Orthodox Church and the Chalcedonian Church of Antioch.

:[[Malankara Jacobite Syriac Orthodox Church]]

:[[Malankara Jacobite Syriac Orthodox Church]]

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:*

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:*1665 "Jacobite" bishop, [[w:Mar Gregorios Abdul Jaleel|Mar Gregorios Abdul Jaleel]] of Jerusalem came to India, confirming the Episcopal consecration of [[w:Mar Thoma I|Mar Thoma I]] as the head of the Orthodox Church in India; this was a new beginning in the history of the '''modern [[w:Malankara Church|Malankara Church]];''' the Western Syrian language and Antiochene liturgy was adopted in their church.

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:*1912 The [[Malankara Jacobite Syriac Orthodox Church]] ''('Bava Kakshi' (Patriarch's Party))'' remained as an autonomous jurisdiction of the [[Church of Antioch (Syriac)]], when the [[Church of India]] split from Antioch in 1912.

====Armenian Apostolic Church====

====Armenian Apostolic Church====

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====Eritrean Orthodox Tewahedo Church====

====Eritrean Orthodox Tewahedo Church====

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*1993 [[Eritrean Orthodox Tewahedo Church]] was formerly a part of the Ethiopian Orthodox Tewahedo Church, its autocephaly being reluctantly recognized by the Ethiopian Patriarchate after Eritrea gained its independence in the 1993.

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*1993 [[Eritrean Orthodox Tewahedo Church]] was formerly a part of the Ethiopian Orthodox Tewahedo Church, its autocephaly being reluctantly recognized by the Ethiopian Patriarchate after Eritrea gained its independence in 1993.

1889 In southern India 5000 Catholics broke from Rome over an organizational dispute, and formed the Independent Catholic Church of Ceylon, Goa and India (i.e. the Jacobite Church of Ceylon, Goa and India; today this is a self-governing branch of the Indian (Malankara) Orthodox Church, known as the Brahmavar (Goan) Orthodox Church, a uniate faction under the Indian Orthodox Church).

1945 Bp. Carlos Duarte Costa of Botucatu (in Brazil), a strong advocate for the liberal reform of the Roman Church since the 1930s, was finally excommunicated by the Vatican on July 2, 1945, in particular for his criticisms of Vatican foreign policy during World War II toward Nazi Germany; in 1945 Bp. Costa became the founder and first patriarch of the Brazilian Catholic Apostolic Church, an independent Roman Catholic Church (claiming 58 dioceses and five million members in 17 countries, as of 2007).

1957 The "Chinese Catholic Patriotic Association" (the official state-approved Church) is established by the People's Republic of China's Religious Affairs Bureau, to exercise state supervision over mainland China's Catholics; the unofficial (Papal) Church continues function as a separate entity.

1970 In opposing the changes within the Church associated with the Second Vatican Council, French Roman Catholic Archbishop Marcel Lefebvre founded the Society of St. Pius X (SSPX), which is still the world's largest Traditionalist Catholic priestly society, composed of 4 bishops and 463 priests, 85 brothers, 75 oblates and 160 seminarians.

Eastern Catholic Churches

The Vatican's Annuario Pontificio gives the following list of 22 Eastern Catholic Churches and of countries in which they possess an episcopal ecclesiastical jurisdiction (date of union or foundation in parenthesis):

Antiochian (West-Syrian) liturgical tradition

685 John Maron elected first Maronite patriarch, founding the Maronite Catholic Church, which embraced Monothelitism, rejected the teaching of the Fifth Ecumenical Council, and separated from the Orthodox Church.

694 Byzantine army of Justinian II defeated by Maronites, who became fully independent.

1182 Maronites, who assisted the Crusaders during the Crusades, reaffirm their affiliation with Rome in 1182.

1599 The Synod of Diamper, held at Udayamperoor/Diamper, (Kerala, India) formally united the ancient Christian Church of the Malabar Coast Saint Thomas Christians with the Roman Catholic Church, and severed its direct ties with the Assyrian church of the East.

1653 A group of the Saint Thomas Christians gathered at Mattancherry near Fort Kochi under the leadership of their archdeacon; They swore the Coonan Cross Oath not to obey the Pope of Rome; subsequently they received a bishop, Mar Gregory, from the Syriac Orthodox Church of West Syrian tradition; those who accepted Mar Gregory became known as the New Party (Puthankuttukar).

1663 A large section of the Old Party (Pazhayakuttukur) cut its ancient ties with the churches in Persia and joined the Catholic Communion in 1663 AD with the ordination of Chandy Bishop. This section is presently known as Syro-Malabar Church.

Russian Catholic Church: (two apostolic exarchates, at present with no published hierarchs): Russia, China (1905); currently about 20 parishes and communities scattered around the world, including five in Russia itself, answering to bishops of other jurisdictions.

1596 Union of Brest-Litovsk, several million Ukrainian and Byelorussian Orthodox Christians, living under Polish rule, leave the Church of Constantinople and recognize the Pope of Rome, without giving up their Byzantine liturgy and customs, creating the Uniate church.

Non-Chalcedonian

Oriental Orthodox Communion

Church of Alexandria (Coptic)

ca.451 Coptic Christianity broke from the Byzantine churches in the wake of the Fourth Ecumenical Council in Chalcedon in 451; Shenouda the Great, abbott of White Monastery in Egypt (d.466), is considered the founder of Coptic Christianity.

1665 "Jacobite" bishop, Mar Gregorios Abdul Jaleel of Jerusalem came to India, confirming the Episcopal consecration of Mar Thoma I as the head of the Orthodox Church in India; this was a new beginning in the history of the modern Malankara Church; the Western Syrian language and Antiochene liturgy was adopted in their church.

Armenian Apostolic Church

554 Church of Armenia (Armenian Apostolic Church) officially breaks with West in 554, during the second Council of Dvin where the dyophysite formula of Chalcedon was rejected.

Ethiopian Orthodox Tewahedo Church

1959 Ethiopian Orthodox Tewahedo Church, (Abbysinia), is an Oriental Orthodox church in Ethiopia that was part of the Coptic Church until 1959, when it was granted its own Patriarch by Coptic Pope Cyril VI.

Eritrean Orthodox Tewahedo Church

1993 Eritrean Orthodox Tewahedo Church was formerly a part of the Ethiopian Orthodox Tewahedo Church, its autocephaly being reluctantly recognized by the Ethiopian Patriarchate after Eritrea gained its independence in 1993.

Other

Assyrian Church of the East

424 Formal separation of the Assyrian Church of the East ("Syrian Church" or the "Persian Church"), from the See of Antioch and the western Syrian Church under the Byzantine Emperors, occurred at a synod in 424; (in India, it is known as the Chaldean Syrian Church; In the West it is often known as the Nestorian Church).

484 Synod of Beth Lapat in Persia declares Nestorianism as official theology of Assyrian Church of the East, effectively separating the Assyrian church from the Byzantine church.

Protestant Groups

1517 Lutheran Church founded by Martin Luther, nailing his Ninety-Five Theses to door at Wittenburg, sparking Protestant Reformation.

1541 Calvinism, (the Reformed tradition, the Reformed faith, or Reformed theology) founded, as the French theologian Johannes Calvinus establishes the first Reformed church in Geneva.

1560 Presbyterian religion founded by John Knox in Scotland.

1571 Dutch Reformed Church founded at the Synod of Emden.

1592 Congregationalist religion originated by Robert Brown in Holland.

1609 Baptist religion launched by John Smyth in Amsterdam.

ca.1630-40 Puritan movement in England; approximately 20,000 Puritans emigrated to New England in the Great Migration; in 1662 the Puritans (also known as "Dissenters", later "Nonconformists") left or were forced out of the Church of England altogether.

1648 Society of Friends (Quakers) founded by George Fox, as a Nonconformist breakaway movement from English Puritanism.

1744 Methodist religion began by John and Charles Wesley in England; (the movement did not form a separate denomination in England until after John Wesley's death in 1795).

1773 Unitarian denomination dates from the secession of Theophilus Lindsey from the Anglican Church.

1789 Episcopal Church formally separated from the Church of England, so that clergy would not be required to accept the supremacy of the British monarch; a revised version of the Book of Common Prayer was also written for the new church in 1789.

1827 Plymouth Brethren; Anglican priest John Nelson Darby became an influential member of the movement now known as the Plymouth Brethren, and advocate of Dispensational Premillenialism, an innovative Protestant movement that gave rise to Evangelicalism.

1830 Mormon (Latter Day Saints) religion started by Joseph Smith, in Palmyra, New York; Book of Mormon published.

1844 Seventh Day Adventists arose from the Millerite movement of the 1840s, which was part of the wave of revivalism in the United States known as the Second Great Awakening, and was formally established in 1863.

1906 Pentecostal movement spreads after the Azusa Street Revival (1906-09); also known as "Charismatic Movement" from ca.1960 onwards.

1925 United Church of Canada, the second-largest Christian denomination in Canada after the Roman Catholic Church, is founded as a merger of four Protestant denominations.

1957 United Church of Christ (UCC) is a mainline Protestant Christian denomination principally in the United States, generally considered within the Reformed tradition, formed in 1957 with the union of the Evangelical and Reformed Church and the Congregational Christian Churches.